<!-- @format -->
<template>
  <div class="panel">
    <div class="title">
      <h4>芙蓉楼送辛渐</h4>
      <span
        class="btn"
        @click="isShow = !isShow">
        {{ isShow ? '收起' : '展开' }}
      </span>
    </div>
    <div
      class="container"
      v-show="isShow">
      <p>寒雨连江夜入吴,</p>
      <p>平明送客楚山孤。</p>
      <p>洛阳亲友如相问，</p>
      <p>一片冰心在玉壶。</p>
    </div>
  </div>
</template>

<script>
  // 1. 创建组件
  export default {
    name: 'MyPanel2022',
    data() {
      return {
        isShow: false
      }
    }
  }
</script>

<style lang="less">
  .panel {
    .title {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border: 1px solid #ccc;
      padding: 0 1em;
    }
    .title h4 {
      line-height: 2;
      margin: 0;
    }
    .container {
      border: 1px solid #ccc;
      padding: 0 1em;
    }
    .btn {
      /* 鼠标改成手的形状 */
      cursor: pointer;
    }
  }
</style>
